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Dr. Oisin R. O'Neill, M.D., F.R.C.S.I.

9155 SW Barnes Rd. #440
Portland, OR 97225
(503) 297-3766

Chronology:

2005	Oregon Brain and Spine Institute	Portland, OR
Cofounder
1995-present	Microneurosurgical consultants	Portland, OR
neurosurgeon
1995-present	Oregon Health Sciences University	Portland, OR
Clinical Instructor of Neurosurgery
1994-1995	Oregon Health Sciences University	Portland, OR
Staff Neurosurgeon
1993-1994	Oregon Health Sciences University	Portland, OR
Fellow; Interventional neuroangiography
1988-1994	Oregon Health Sciences University	Portland, OR
Neurosurgery Residency
1988	University of washington	Washington
Neurosurgery resident
1985-1988	Richmond/Beaumont Hospitals (RCSI)	Dublin, Ireland
Neurosurgery resident
1979-1985	Royal College of Surgeons in Ireland	Dublin, Ireland
Medical Student

Awards:

• David Gault Medal in Obstetrics and Gynecology
• Lyons /Fitzsimons Prize in Surgery
• Portland Monthly's Top Docs in Neurosurgery - 2005-2009
• Listed among America’s Top Surgeons 2004-2009 by the Consumers Research Council of America

Memberships:

• American Association of Neurological Surgeons
• Register of General Medical Council of Ireland
• Association of Northwest Physicians
• Fellow of the Royal College of Surgeons
• Fellow of the American College of Surgeons
• Southwest Oncology Group

Publications:

Articles and Chapters:

• O'Neill OR, Burchiel KJ. Role of the Sympathetic Nervous System in Painful Nerve Injury. In surgical management of peripheral nerve injury and entrapment, Neurosurgery Clinics of North America, KJ Burchiel (ed), WB Saunders Co. Z:127-136, 1991.
• O'Neill, OR, Burchiel KJ. Sympathetically Maintained Pain Syndromes: Diagnosis and Surgical Management. Res and Staff Physician 37;4:41-52, 1991.
• O'Neill, OR Piatt JH. Sacral Agenesis Associated with Spinal Cord Syrinx: Report of Three Cases. Pediatric Neurosurgery 20:217-220, 1994
• O'Neill OR, Phillips JP, Delashaw. Subperiosteal Hematoma of the Orbit Associated with Subfrontal Extradural Hematoma; Case Report. Surgical Neurology 42:308-311, 1994.
• O'Neill OR, Gilliland G, Delashaw JB, Pirtzer TJ. Transorbital Penetrating Head Injury with a Hunting Arrow: Case Report. Surgical Neurology 42:308-311, 1994.
• Barnwell, SL, O'Neill OR. Endovascular Therapy of Carotid Cavernous Fistulas. Neurosurgery Clinics of North America. WB Saunders Co. Philadelphia, 5:(3);485-495,1994.
• Barnwell SL, Clark W, Nguyen TT, O'Neill OR, Whynn M Coull B. Safety and Efficacy of Delayed Intra-arterial Urokinase Therapy with Mechanical Clot Disruption for Thromboembolic Stroke. AJNR 15:1817-1922, 1994.
• O'Neill OR, Piatt JH, Mitchell P, Roman-Goldstein S. Agenesis and dysgenesis of the sacrum: neurosurgical implications. Pediatric Neurosurgery. 22:20-28, 1995.
• Barnwell SL, O'Neill OR. Lesions of the Cerebral Veins and Dural Sinuses. In Julian R. Youmans (ed): Neurological Surgery, 4th ed. Philadelphia, WB Saunders Company, 1994, pp (in print).
• Neuwelt EA, O'Neill OR, Roman-Goldstein S, Schulz T. Clinical Features and Imaging of Pineal Region Tumors. In Cooper P, Barrow D (eds). The Practice of Neurosurgery. April 1994 (in print).
• O'Neill OR, Barnwell SL, Silver DJ, Middle Meningeal Artery Aneurysm Associated with Meningioma; case report. Neurosurgery 36:396-398, 1995.
• O'Neill OR, Barnwell SL, Samuels M, Cook DM, Loriaus DL. Superselective Cavernous Sinus Sampling of ACTH for Preoperative Localization of Adenoma in Cushing's Disease. Submission JNS May 12, 1994 (awaiting photos).
• O'Neill OR, Barnwell SL. Endovascular Hardware. In, Maciunas P (ed). Endovascular Neurological Intervention: Neurosurgical Topics, AANS Pub., Park Ridge, Ill. USA pp 43-58, 1995.
• Clark WM, Barnwell SL, Nesbitt G, O'Neill OR, Wynn ML, Coull BM. Safety and Efficacy of Percutaneoustransluminal Angioplasty for Intracranial Atherosclerotic Stenosis. Stroke 26:1200-1204, 1995
• Nesbit GM, Clark WM, O’Neill OR, Barnwell SL. Intracranial Intraarterial Thrombolysis facilitated by Microcatheter Navigation through an Occluded Cervical Internal Carotid Artery. J Neurosurg 84:387-392, 1996.
• Kuether TA, O’Neill OR, Nesbit GM, Barnwell SL. Direct carotid cavernous fistula after trigeminal balloon microcompression gangliolysis: case report. Neurosurgery 39:853-856, 1996
• Kuether TA, O’Neill O, Nesbit GM, Barnwell SL. Endovascular treatment of traumatic dural sinus thrombosis: case report. Neurosurgery 42:1163-1167, 1998
• Graham KE, Samuels MH, Nesbit GM, Cook DM, O'Neill OR, Barnwell SL, Loriaux DL. Cavernous sinus sampling is highly accurate in distinguishing Cushing's disease from the ectopic adrenocorticotropin syndrome and in predicting intrapituitary tumor location J. Clin. Endocrinol. Metab., 84(5): 1602-1610, 1999
• Kaimaktchiev V, Lowenkopfl TJ, O'Neill OR, Larkin KL, Nixon RR. Unusual Finding of Brain Crystals In A Multiple Sclerosis Patient: A Case Report. J Neuorpathology and Experimental Neurology, 64(5):444, May 2005

Abstracts:

• Farrell, MF, Staunton H, O'Neill OR, Phillips JP, Toland J; Multiple Sclerosis Presenting with Mass Lesions of the Brain Simulationg Tumor. Abstract, American Society of Neuropathology, Philadelphia, PA, 1987.
• O'Neill OR, Goldstein S, Neuwelt EA.; Nonneoplastic Lesions of the Pineal Gland. Abstract. American Association of Neurological Surgeons Meeting. Nashville, Tenn. 1990
• Shah R, O'Neill OR, Olaoire S; Spondylotic Myelopathy in the Elderly. Abstract. Ninth European Congress of Neurosurgery, Mosco USSR, 1991.
• O'Neill OR; Sacral agenesis; a review. Abstract, Northwest Society of Neurology and Neurosurgery Meeting, Salishan, Oregon, 1991.
• Grank EH, Keenan T, O'Neill OR; Laminoplasty for cervical Spondylosis. Abstract, Congress of Neurological Surgeons Meeting, Washington DC, 1992.
• O'Neill OR, Piatt JH; Sacral agenesis and the Caudal Regression Syndrome. Abstreact280, American Association of Neurological Surgeons Meeting, Washington DC, 1992.
• O'Neill OR, Frank EH; Comparison of MRI and CT Myelography in Estimation of Cervical Canal Stenosis. Abstract, American College of Surgeons, Oregon Chapter. Ashland, Oregon 1992.
• O'Neill OR, Ono H; Intrathecal vs. Epidural morphine in lumbar Spine Surgery; A Comparative Study of Postoperative Pain Relief and Complications. Abstract, Joint Sections of Spine and Peripheral Nerve. (AANS/CNS). Tucson, Arizona 1993.
• Johans TJ, O'Neill OR, Horgan M, Frank EH, Keenan T; Stabilization after Anterior Cervical Corpectomy and Fusion with the Morscher Locking Plate System. Abstract, Joint Section on Spine and Peripheral Nerves Meeting, Tucson, Arizona 1993
• O'Neill OR, Piatt JH; Spinal Cord Syrinx Associated with Sacral Agenesis, Abstract P122, American Association of Neurological Surgeons Meeting, Boston, Mass., 1993
• O'Neill OR, Frank EH; Comparison of Magnetic Resonance Imaging and CT Myelography in Determination of the Degree of Cervical Spine Stenosis. Abstract E547, American Association of Neurological Surgeons Meeting, Boston, Mass, 1993
• O'Neill OR, Barnwell SL, Cook D: Superselective Cavernous Sinus Sampling of Adrenocortocotrophic Hormone in Pituitary Dependent Cushing's Syndrome: Sensitivity and Lateralizing Value. American Society of Neuroradiology Meeting, Nashville, May 1994.
• Samuels M, Cook D, O'Neill O, Barnwell S, Cook M, Loriaux DL, Bilateral Cavernous Sinus Sampling with Corticotropin Releasing Hormone (oCRH) in ACTH-dependent Cushing's Syndrome. Presented at the Endocrine Society Meeting, Anaheim, June, 1994 (M Samuels-presenter)
• O'Neill OR, Barnwell SL, Cook DC, Samuels M. Superselective Cavernous Sinus Catheterization for Adrenocorticotrophic Hormone Assay in Cushing's Disease; Value in Diagnosis and Lateralization. (abst AE265). Congress of Neurological Surgeons, Chicago, Oct. 1994.
• O'Neill OR, Ono H. Lumbar Spine Surgery Utilizing Intrathecal or Epidural Morphine Sulfate; a Comparative Study. Congress of Neurological Surgery, Chicago, (Abstr. AE120) Oct. 1994
• Clark W, Barnwell SL, O"neill OR, Ahuja A, Wynn M, Coull BM. Successful Middle Cerebral Artery Thrombolysis by Microcatherter Navigation Through an Occluded Internal Carotid Artery. 20th International Joint Conference on Stroke and Cerebral Circulation, Charleston, South Carolina, Feb. 1995.
• O'Neill OR, Barnwell SL, Clark W. Endovascular Therapy of Intracranial Thrombosis by Catheter Navigation Through an Occluded Carotid Artery (Abstract E466) AANS meeting 1995.
• Oneill OR, Barnwell SL, Clark, W. Percutaneous Transluminal Angioplasty of Intercranial Atheromatous Stenotic Lesions (E-467) AANS Meeting 1995.
• Kuether TA, Clark W, O'Neill OR, Ahuja A, Wynn M, Barnwell SL. Rotational Vertebral Artery Occlusion: A Mechanism of Vertebrobasilar Insufficiency. 20th International Joint Conference on Stoke and Cerebral Circulation, Charleston, South Carolina, Feb. 1995.
• Graham KE, Samuels MH, Cook DM, O'Neill OR, Nesbit EM, Barnwell SL, Loriaux DL. Inferior Petrosal (IPSS) vs. Cavernous Sinus Sampling (CSS) in Cushing's Syndrome. American Federation for Clinical Research, July 1995.

Published Artwork:

• O'Neill OR, Phillips JP, Delashaw. Subperiosteal Hematoma of the Orbit Associated with Subfrontal Extradural Hematoma; Case Report. Drawing of Orbital Hematoma, Fig. 1. Surgical Neurology 42:308-311, 1994.

Oral Presentations:

• O'Neill OR, Piatt JP. Sacral Agenesis and the Caudal Regression Syndrome; a review. Abstract/Presentation, Northwest Society of Neurology and Neurosurgery, Salishan, Oregon 1991.
• O'Neill OR, Piatt JP. Sacral Agenesis and the Caudal Regression Syndrome. Abstract 280, Congress of Neurological Surgeons, Washington, DC. 1992
• O'Neill OR, Frank EH. Comparison of MRI and CT Myelography in Estimation of Cervical Canal Stenosis. The American College of Surgeons Meeting, Oregon Chapter, Ashland, OR 1993
• O'Neill OR. The impact of Interventional Radiology on Neurological Disease. Northwest American Radiological Nurses Association Meeting Presentation, Portland, Oregon 1994.
• O'Neill OR, Barnwell SL, Cook D, Samuels M: Superselective Cavernous Sinus Sampling of Adrenocortocotropic Hormone in Pituitary Dependent Cushing's Syndrome: Sensitivity and Lateralization Value. American Society of Neuro-Radiology Meeting, Nashville, TN 1994.
• O'Neill OR, Barnwell SL. Angioplasty of Intracranial Atherametous Lesions Involving the Vertebral, Basilar, Internal Carotid, and Middle Cerebral Arteries. Research Society of Neurological Surgeons Meeting, Portland OR, June 1994.
• O'Neill OR, The Role of Interventional Radiology in the Treatment of Neurological Disease. Intensive Care Issues in Neuroscience Nursing. OHSU School of Nursing, Portland, Oregon, April 1994.
• O'Neill OR. Neurosurgical Considerations in the Elderly Patient. Northwest Neurosciences Society Meeting. Salishan, Oregon, August 1995.

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